anybody else have this problem. in particular in the UK with O2? I live in an area with intermittent 3G coverage so this may well be the problem. My phone seems to work fine, then sometimes it decides to just not accept incoming calls and directs them straight to answerphone. I've switched answerphone on/off using the 1750/1760 dialling. I've even restored twice, but it still seems to intermittently occur. I've had the iPhone switched on sat on the desk with it showing a few bars of signal, and then phoned it using my landline, and it goes straight to answerphone. am I alone with this problem any ideas??